Thank you to all that responded. I'll give more info - purchased on ebay - listed as regular loco not dcc. The wiring on the circuit board is as follows 2 red wires, 2 blavk, 1 green and 1 orange. I'm not suree which wire to eliminate. I assume I need the 2 red and 2 black, not sure about the other green and orange. Any assistance would be greatly appreciated